HIGH

CVE-2026-107366

CVSS v3

8.3

HIGH

EPSS Score

—

exploit probability

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-107366 yet.

Full record on NVD

Description

IBM Langflow OSS 1.0.0 through 1.12.4 contains three message endpoints that perform no ownership verification. Any authenticated user can bulk-delete another user's messages, overwrite message content to inject malicious prompts, or hijack an entire conversation session by reassigning its session ID.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Published: 2026-10-20
Last Modified: 2026-10-20

Frequently asked questions

What is CVE-2026-107366?

Is CVE-2026-107366 actively exploited?

Active exploitation of CVE-2026-107366 has not been confirmed.

What is the CVSS score for CVE-2026-107366?

CVE-2026-107366 has a CVSS v3 base score of 8.3 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.

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